Other names: Northern bluefin tuna
The Longtail Tuna, known for its streamlined body and distinctive fin shape, is a prized catch among anglers. This species inhabits warm tropical and subtropical waters across the Indo-West Pacific. Renowned for its speed and strength, the Longtail Tuna is a popular target for sport fishing. It typically forms schools and feeds on a variety of small fish and invertebrates. While highly valued in commercial fisheries, it is also sought after for fresh, dried, or canned consumption.
Other names
Northern bluefin tuna
Length
~70" (max 145)
Weight
~15" (max 35)
Water
Salt
Water Temp
24-28° F
Depth
10-80 ft
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Longtail Tuna prefers warm coastal waters and is often found in the upper layers of the ocean
It avoids areas with low salinity, such as estuaries, favoring clear, deeper waters where visibility is high
This species frequently forms schools, which can vary in size depending on the availability of prey
Its diet includes small fish, cephalopods, and crustaceans, making it an active predator in its habitat
The Longtail Tuna typically reaches sexual maturity at a moderate size, with spawning occurring in warmer seasons
During the spawning season, these fish migrate to specific areas where conditions are favorable for laying eggs
After spawning, juveniles grow rapidly, with their feeding patterns gradually expanding as they mature
Adult Longtail Tuna continue to migrate in search of food, following the movement of schools of baitfish